[K/N] Add ObjCName annotation (#4815)

kotlin-native/runtime/src/main/kotlin/kotlin/native/Annotations.kt

@@ -5,6 +5,7 @@
 
 package kotlin.native
 
+import kotlin.experimental.ExperimentalObjCName
 import kotlin.reflect.KClass
 
 /**
@@ -83,3 +84,19 @@ public annotation class EagerInitialization
 @Target(AnnotationTarget.FUNCTION)
 @Retention(AnnotationRetention.BINARY)
 public actual annotation class CName(actual val externName: String = "", actual val shortName: String = "")
+
+/**
+ * Instructs the Kotlin compiler to use a custom Objective-C and/or Swift name for this class, property, parameter or function.
+ * @param exact specifies if the name of a class should be interpreted as the exact name.
+ * E.g. the compiler won't add a top level prefix or the outer class names to exact names.
+ */
+@Target(
+        AnnotationTarget.CLASS,
+        AnnotationTarget.PROPERTY,
+        AnnotationTarget.VALUE_PARAMETER,
+        AnnotationTarget.FUNCTION
+)
+@Retention(AnnotationRetention.BINARY)
+@MustBeDocumented
+@ExperimentalObjCName
+public actual annotation class ObjCName(actual val name: String = "", actual val swiftName: String = "", actual val exact: Boolean = false)